what mass of cobalt contains the same amount of atoms as 57.0 g of flourine

Q: How many oxygen atoms are in 26.3 g of dinitrogen pentoxide?

A: Given :- amount of dinitrogen pentoxide = 26.3 g  To be calculated :- total number of oxygen atoms

Q: What is the difference between an empirical formula and a molecular formula?

A: The empirical and the molecular formulas are both a type of chemical formulas. An empirical formula…

Q: How many atoms are in a 211. g sample of potassium (molar mass = 39.1 g/mol)?

A:

Q: Calculate the number of grams of cobalt that contain the same number of atoms as 1.96 g of iron.

A: 1 mole = 6.022×1023 [ Avogadro number ] The mass of one mole of atoms of an element is called molar…

Q: What mass of bromine trifluoride has the same number of fluorine atoms as 26.7 g of oxygen…

A:

Q: What number of  atoms and what amount (moles) of  atoms are in 800.0 g of zinc?

A: Given : mass of Zinc = 800 g

Q: How many moles of NH3 are present in 4.98 g of the compound?

A:

Q: Calculate the mass (in grams) found in 0.805 mol sulfur.

A: Since mass = moles X molar mass Since the formula for sulphur is not given  So assuming its natural…

Q: How many atoms are contained in 0.98 moles of iron (Fe)?

A:

Q: The compound discussed in the above question has a molar mass of around 130 g/mol. What is the…

A: Given :- molar mass of unknown compound = 130 g/mol  To identify :- molecular formula of the…

Q: If sorbic acid has an experimental molar mass of 112 g, what is its molecular formula?

A:

Q: How many atoms are in 15 g LİCIO,? number of atoms: How many ions are in 15 g LiCio,? number of…

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: If a sample of Fe2S3 contains 1.25x10^15 iron atoms what is the mass in grams ?

A:

Q: Calculate the number of oxygen atoms in 24 g of carbon dioxide

A: Molecular weight of CO2 = 12+(16*2) = 44g/mol Molecular weight of oxygen = 16g/mol  Molecular weight…

Q: What mass of sodium hydroxide has the same number of oxygen atoms as 225.0 g of ammonium sulfate?

A: According to Avogadro no, any substance or compound have 6.022 * 10^23 atoms/molecules present in…

Q: A sample of pure carbon disulfide has a mass of 45.05 g. How many molecules of carbon disulfide…

A: Number of mols = weight / molecular weight  Number of molecules  = number of mols × 6.023 × 1023

Q: A hydrocarbon molecule contains twice as many hydrogen atoms as carbon atoms. It's molar mass is…

A: Molar mass of hydrogen = 1.00784 g/molMolar mass of carbon = 12.0107 g/mol

Q: A 170.00 g sample of an unidentified compound contains 29.84 g sodium, 67.49 g chromium, and 72.67 g…

A: Given :-  Mass of Na = 29.84 g  Mass of Cr = 67.49 g  Mass of O = 72.67 g  To be determined :-…

Q: Determine the number of atoms in 30.0 g of Zn.

A: Given that: Mass of zinc = 30.0 g Number of atoms of Zn = ?

Q: If a student weighs 23 g of aluminum and needs twice as many atoms of magnesium as she has of…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: What is the percent by mass N in Magnesium Nitrate?

A: Atomic mass of N =  14 g mol-1 Molar mass of Magnesium Nitrate (Mg(NO3)2) = 148.3 g mol-1

Q: A new computer chip contains 4.71×1022 Si atoms. Determine the mass (in grams) of the silicon…

A: 1 mole of any substance contains avagadro number of atoms i.e.6.022×1023 atoms.  6.022×1023 atoms of…

Q: How many atoms are in 46 g of bromine?

A: Given : Mass of bromine = 46 g Molar mass of bromine i.e Br2 = Atomic mass of Br X 2 = 79.9 X 2 =…

Q: Calculate the amount in moles of molecules for each substance listed. a. a sample of ammonia,…

A: There are 3 atoms of H in 1 mole of NH3  1 atom of H = 1/3 mole of NH3 Therefore 8.1×1020 atom of H…

Q: How many atoms are present in 2 moles of Fe ?

A:

Q: How many moles of strontium (Sr) atoms are in 81.7 g of Sr? mol

A: Given : Mass of Sr = 81.7 g.

Q: A compound has a molar mass of 38.41 g/mol.  If a sample of this compound is 246.1 g, how many mol…

A:

Q: How many atoms are present in 0.430 g of gold?

A: Given, mass of Gold = 0.430 g  Molar mass of Gold = 196.97 g/mol Number of Atoms = ?

Q: Calculate the mass in grams of lead (IV) acetate (443.3 g/mol) that will have 86g of carbon atoms.

A: Given, Mass of C = 86 g Molar mass of lead acetate = 443.3 g/mol

Q: 20)A 10 g sample of which substance contains the greatest number of hydrogen Atoms? 

A: [A.] 10 g of PH3  Molar mass of PH3 = 33.997 g/mol  Number of moles of PH3 = 10 g / 33.997 g/mol  =…

Q: Calculate the mass in grams of 14 atoms of Ca.

A:

Q: What is the molar mass, mass, and no. of particles of Calcium fluoride

A: Calcium fluoride is the inorganic compound of the elements calcium and fluorine with the formula…

Q: How many phosphorus atoms are present in 2.35 mol of potassium phosphate?

A:

Q: How many formula units are contained in 78 g of calcium fluoride, CaF,?

A: Number of moles is the term which is used to express the amount of the compound or the element in…

Q: What is the mass in grams of 645 iodine molecules?

A:

Q: How many atoms are present in a 0.300-mole sample of gold?

A: The number of molecules from the number of moles of a compound can be determined by Avogadro's…

Q: How many calcium atoms are in 1 g of CaO?

A:

Q: Calculate the mass in grams of 422 atoms of potassium K

A:

Q: The mass in grams of iodine in a sample of BaI 2 that contains 15.7 grams of barium is

A: The moles of Barium ion is calculated as follows,

Q: . Calculate the mass of manganese(II) carbonate

A:

Q: how many atoms are in 102.1 g of sodium?

A:

Q: Consider a 3.55 g sample of C4H10. How many atoms of C would be in this sample?

A: Molar mass of C4H10  = 58 g/ mol Fraction of  C = 48/58 = 0.8276

Q: What mass of sodium hydroxide has the same number of oxygen atoms as 280.0 g of ammonium sulfate?

A:

Q: What is the mass of 3.00 moles of carbon dioxide?

A:

Q: How many atoms are present in 0.35 mol of Na?

A: Given : no. of moles of Na = 0.35 mol  To calculate :- number of atoms of Na

Q: How many grams of F are in 325 g CaF, ? mass: g

A: Calculate number of gram of F in CaF2 ?

Q: What is the mass (grams) of 2500. carbon atoms?

A:

Q: Calculate the mass of 17 moles of iron(III) carbonate.

A: Answer

Q: How many atoms are in 127 g of calcium?

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.